<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE html>
<html lang="en">
<head>
  <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<!-- qqmldelegatecomponent.cpp -->
  <title>DelegateChoice QML 类型| Qt QML 5.12.3</title>
  <link rel="stylesheet" type="text/css" href="style/offline-simple.css" />
  <script type="text/javascript">
    document.getElementsByTagName("link").item(0).setAttribute("href", "style/offline.css");
    // loading style sheet breaks anchors that were jumped to before
    // so force jumping to anchor again
    setTimeout(function() {
        var anchor = location.hash;
        // need to jump to different anchor first (e.g. none)
        location.hash = "#";
        setTimeout(function() {
            location.hash = anchor;
        }, 0);
    }, 0);
  </script>
</head>
<body>
<div class="header" id="qtdocheader">
  <div class="main">
    <div class="main-rounded">
      <div class="navigationbar">
        <table><tr>
<td ><a href="../qtdoc/index.html">Qt 5.12</a></td><td ><a href="qtqml-index.html">Qt QML</a></td><td ><a href="qtqml-qmlmodule.html">QML Types</a></td><td >DelegateChoice QML 类型</td></tr></table><table class="buildversion"><tr>
<td id="buildversion" width="100%" align="right"><a href="qtqml-index.html">Qt 5.12.3 参考指南</a></td>
        </tr></table>
      </div>
    </div>
<div class="content">
<div class="line">
<div class="content mainContent">
<div class="sidebar">
<div class="toc">
<h3><a name="toc">目录</a></h3>
<ul>
<li class="level1"><a href="#properties">属性</a></li>
<li class="level1"><a href="#details">详细信息</a></li>
</ul>
</div>
<div class="sidebar-content" id="sidebar-content"></div></div>
<h1 class="title">DelegateChoice QML 类型</h1>
<span class="subtitle"></span>
<!-- $$$DelegateChoice-brief -->
<p>封装委托以及何时使用它。 <a href="#details">更多...</a></p>
<!-- @@@DelegateChoice -->
<div class="table"><table class="alignedsummary">
<tr><td class="memItemLeft rightAlign topAlign"> 导入语句:</td><td class="memItemRight bottomAlign"> import Qt.labs.qmlmodels 1.0</td></tr></table></div><ul>
<li><a href="qml-qt-labs-qmlmodels-delegatechoice-members.html"></a></li>
</ul>
<a name="properties"></a>
<h2 id="properties">属性</h2>
<ul>
<li class="fn"><b><b><a href="qml-qt-labs-qmlmodels-delegatechoice.html#column-prop">column</a></b></b> : index</li>
<li class="fn"><b><b><a href="qml-qt-labs-qmlmodels-delegatechoice.html#delegate-prop">delegate</a></b></b> : Component</li>
<li class="fn"><b><b><a href="qml-qt-labs-qmlmodels-delegatechoice.html#index-prop">index</a></b></b> : index</li>
<li class="fn"><b><b><a href="qml-qt-labs-qmlmodels-delegatechoice.html#roleValue-prop">roleValue</a></b></b> : string</li>
<li class="fn"><b><b><a href="qml-qt-labs-qmlmodels-delegatechoice.html#row-prop">row</a></b></b> : index</li>
</ul>
<!-- $$$DelegateChoice-description -->
<a name="details"></a>
<h2 id="details">详细信息</h2>
<p><a href="qml-qt-labs-qmlmodels-delegatechoice.html">DelegateChoice</a>类型包装了一个委托，并定义了应该选择它的环境。</p>
<p>DelegateChoice可以嵌套在<a href="qml-qt-labs-qmlmodels-delegatechooser.html">DelegateChooser</a>中。</p>
<p><b>请参考 </b><a href="qml-qt-labs-qmlmodels-delegatechooser.html">DelegateChooser</a><span lang="zh-cn">。</span></p>
<!-- @@@DelegateChoice -->
<h2>属性的文档</h2>
<!-- $$$column -->
<div class="qmlitem"><div class="qmlproto">
<div class="table"><table class="qmlname">
<tr valign="top" class="odd" id="column-prop">
<td class="tblQmlPropNode"><p>
<a name="column-prop"></a><span class="name">column</span> : <span class="type">index</span></p></td></tr>
</table></div>
</div><div class="qmldoc"><p>此属性保存用于匹配模型元素列值的值。</p>
</div></div><!-- @@@column -->
<br/>
<!-- $$$delegate -->
<div class="qmlitem"><div class="qmlproto">
<div class="table"><table class="qmlname">
<tr valign="top" class="odd" id="delegate-prop">
<td class="tblQmlPropNode"><p>
<a name="delegate-prop"></a><span class="name">delegate</span> : <span class="type"><a href="qml-qtqml-component.html">Component</a></span></p></td></tr>
</table></div>
</div><div class="qmldoc"><p>如果该选择与模型项匹配，则此属性保存要使用的委托。</p>
</div></div><!-- @@@delegate -->
<br/>
<!-- $$$index -->
<div class="qmlitem"><div class="qmlproto">
<div class="table"><table class="qmlname">
<tr valign="top" class="odd" id="index-prop">
<td class="tblQmlPropNode"><p>
<a name="index-prop"></a><span class="name">index</span> : <span class="type">index</span></p></td></tr>
</table></div>
</div><div class="qmldoc"><p>此属性保存用于匹配模型元素索引值的值。这实际上是<a href="qml-qt-labs-qmlmodels-delegatechoice.html#row-prop">row</a>的别名。</p>
<p><b>请参考 </b><a href="qml-qt-labs-qmlmodels-delegatechoice.html#row-prop">row</a>.</p>
</div></div><!-- @@@index -->
<br/>
<!-- $$$roleValue -->
<div class="qmlitem"><div class="qmlproto">
<div class="table"><table class="qmlname">
<tr valign="top" class="odd" id="roleValue-prop">
<td class="tblQmlPropNode"><p>
<a name="roleValue-prop"></a><span class="name">roleValue</span> : <span class="type"><a href="qml-string.html">string</a></span></p></td></tr>
</table></div>
</div><div class="qmldoc"><p>此属性保存用于匹配由<a href="qml-qt-labs-qmlmodels-delegatechooser.html#role-prop">DelegateChooser::role</a>提供的角色数据的值。</p>
</div></div><!-- @@@roleValue -->
<br/>
<!-- $$$row -->
<div class="qmlitem"><div class="qmlproto">
<div class="table"><table class="qmlname">
<tr valign="top" class="odd" id="row-prop">
<td class="tblQmlPropNode"><p>
<a name="row-prop"></a><span class="name">row</span> : <span class="type">index</span></p></td></tr>
</table></div>
</div><div class="qmldoc"><p>
		此属性保存用于匹配模型元素的行值的值。对于只有index属性(因此只有一个列)的模型，应该将此属性作为索引，并设置为所需的索引值。</p>
<p><b>注意： </b>设置行和索引具有未定义的行为。两者是等价的，只能使用一个。</p><p><b>请参考 </b><a href="qml-qt-labs-qmlmodels-delegatechoice.html#index-prop">index</a><span lang="zh-cn">。</span></p>
</div></div><!-- @@@row -->
<br/>
        </div>
       </div>
   </div>
   </div>
</div>
<div class="footer">
   <p>
   <acronym title="Copyright">&copy;</acronym> 2019 The Qt Company Ltd.
   Documentation contributions included herein are the copyrights of
   their respective owners.<br/>    The documentation provided herein is licensed under the terms of the    <a href="http://www.gnu.org/licenses/fdl.html">GNU Free Documentation    License version 1.3</a> as published by the Free Software Foundation.<br/>    Qt and respective logos are trademarks of The Qt Company Ltd.     in Finland and/or other countries worldwide. All other trademarks are property
   of their respective owners. </p>
</div>
</body>
</html>
